Type-writer.



ilgppllwillnn lilel y Il El 1 ll 'J'HOWH 'lll'l w Mammy, m oil? the ll as. :mrl msulmt H mm wirlllpwilllil I us 1 mm m Hie) lmnju, mm? a m Fpl 3 0:1 lllfi i Hunt slum: mm 1' 1 v 'mulumsn 12mm in licatiun 'Llwml l.

' 0m Hm I": )l

3 is ab lflll 'fllllllilll V 1 .4mm and platen lllusll'zl mm, M my in'm's't'lma; .l ig c .3. tr median llatmiw ll film 09mm 0;? film 11mm pzl the mn lfrlezg am mu]. HEW of the. platen, and sectim'i Hmugh l'un lle star-m a Kl inwardly mxlmuling; @211; at 10 and wall of 'riuge new" the and n1 21 cm; mgg pl 1- GEL platen pl m, line spacing .lGVQl' la uingg rammed but ills; pawl and pl'ml; Screw :ilm' smuymcvvll l shown in pasition; all ma viewed :lmnn. Llm Tight m? lilelllm l. l ll llll Ml '2 atnvu'lurl with an and wall 5'; cl nuimmm'n ll) llpon the mum: lflillfimqlfill ll Oil Hm lull) rivutml l lw imnm. J mztmulingw Hluum ol lilm lllm spin-#115,; level; 1 ilf'llih luvm? mn'l'ivs m'l ill pivnliwl on 30115! 1.5 and internal mtchvt teeth l6 Within 'lslJLe l, 'llhits line bpzwiug lezvar is pro- WLL a thumb pad in by which it is l'lheyjlliu'l en, may also be rolia'tml film lm'ml ip ll prrwidml with 11 Elm slam tl'wrm lfhe pin 11 slot in am inwzm'llly filkillm'lillllg l nllnwlmcl to hearing of the platen wl'alall comlarmzl'iun permits li-llG hand grip in l pllillflil inward law film pmsition iimll u U. l l'lm (lolxl'wl lima: E1. mw'l purovldml filler ii: in llllt, oml wall 5 of Hm flesmibml in this ezwl'l' M The lmlurc ;):1,1'agm l1 are for l'lm mm-l; pull-l; cowl-ml in 1y co wmling :wplicutllm Flair, 95,612 filed li lll as, will l ml 'W? l 5 of Hm :umriugge mul line spaw in .lfillil 112 :11 m owl apprulminmlcly lulu; sumo a'mimnm tll'll'llit'hflSE aml lie in Elm same lune 'llln'mlglmulu all lvlmir POL'llUIIS with wljxich, llm 3 lm ml :1 FillQOll ml" pa m" passing m mmuml 211ml from tlm l man could wine in. 0mm"! fizlranl. lull Oil platen and 0211* ria culls; (lull. ml lilm, mal'm" plmwl mil .1 Willl 5% w; mll mlJl a m a pwllzmn plnm uml Eilkll parts U? and within 'lili 0 left end of the platen where wall and lever as extend inward from the inner plane of the end wall 5 are either well or well without the path of the edge of the sheet of paper in its passage around the platen.

At the other end of the carriage attached to end frame 9 is a stand 18 carrying a bearing for platen pivot 3. As in the case of end wall 5, such part of stand 18 as the edge of the paper can come in contact with is of minimum thickness and no parts of stand 18 or of the carriage or 'platen extend outside of the outer plane of 18. Such parts of 18 as extend inward from its inner plane, as the portion which is attached to end frame 9 and the boss for bearing for platen pivot 3, are well within or well without the path of the sheet of paper.

The sheet of paper is held in contact with the platen by rollers 19 and 20 provided with a pivot at each end journaled in one end of links 21, the other end of the links being pivoted to the end frames 8 and 9, the rollers being forced against the platen by the action of spring 22 (see Fig. 4). The paper is also held in contact with the platen by a small roller 23 at each end of the platen and also by a clip plate 21 (see Fig. 10) which is preferably graduated along its edge adjacent to the writing line.

lVith this construction I am able to mount a platen pivoted at both ends in a carriage with closed ends which will receive, with comfortable clearance, letter paper of the usual width of eight to eight and one half inches and at the same time not exceed an overall length of nine inches for the carriage, platen and attachments, which dimension I find to be about the minimum for the width of a main frame that will house a standard keyboard with shift and back space keys.

The embodiment of my invention shown in Figs. 3, 4, ,5, features of the embodimfi nt just described but differs from same in several features. The ratchet teeth 16 are in. this case notched into the end face of the ,aten rim, instead of being located onthe interior face of same. The ratchet pawl 14 is pivoted on a radially disposed pivot 15, the pawfl'and pivot screw being placed sufficient] y below the periphery of the platen to avoid interference with the margin 25 of the sheet of paper which may extend beyond the end of the platen. The hub 7 upon which the right hand end of the platen is pivoted is extended well to the it is chambered to act as a supporting bearing for pivot 26 extending inward from the left end of the platen. This construction supports the outer end of the platen with sufficient rigidity for ordinary writing purposes but without too heavy and cumbersome construction this overhung platen dropped to the dotted position 29.

and 6 employs many of thev might not maintain its alinement under all shocks of transportation or abnormal aceidental stress when in service. I therefore prefer to employ an auxiliary pivot 30 supported by a removable standard 29 which is shown hinged at 31 so that it may be It is intended that this end pivot 30 shall remain, normally, in engagement, as, by theemployment of my invention which gives a minimum extension of the carriage beyond the margins of the sheet of paper which it will receive, a carriage of nine inches or less overall length will receive all sizes of paper and envelops ordinarily written upon. In Fig. 4 a sheet of paper is shown passed around the platen, one end at 32 and the emerging end at 33. In Fig. 3 the width of the paper is seen extending from one edge 25 to the other 34, the whole space between the inner surface of walls 5 and 29 being available for the passage of the paper. When it is desired to write upon a long envelop or other article the end bearing is dropped to the position 29, 30, when the article can extend any distance beyond the end of the platen and carriage as indicated by the broken lines 35. The keeper 27 engaging the groove 28 maintains the platen in a fixed endwise position when end pivot 30 is out of engagement.

The bar 36, Figs. 3, 5 and 6, holds the auxiliary pivot in engagement.- Bar 36 is pivoted on an enlarged portion of pivot screw 30. The bar has recesses near each end which engage circular grooves in the ends of studs 37. When'the bar is swung on the pivot 30 to the dotted position 36' the recesses are thrown out of engagement with studs 37 and the bearing is free to drop to the position 29, 30'.

Figs. 7, 8 and 9 illustrate my preferred method of applying a peripheral toothed ratchet wheel to my invention. The'end wall 5 and part of the inward extension 6 is cut away from 42 to 4:3 to give clearance for the line spacing lever 12. This lever is normally held in'the position shown by the action of the lever,'which is partly broken away toshow part of it, on screw 15. In this normal position the tail 40 of the pawl is in contact with end 43 of the cut out portion of the inner extension 6, thereby holding the engaging end of pawl 14 out of engagement with ratchet teeth 16. A jaw of the spring detent a1 engages one of the ratchet teeth depressions to maintain the platen in proper position. When line spacing lever 12 is pressed backward the pressure is removed from tail 40 of the pawl and its engagement end 14 drops into engagement with a'ratchct tooth 16. Upon' pressing thumb pad .13 backward to the dotted position 13 the engaged pawl is carried to It. The periphery of ratchet teeth 16 weapon is kept below the periphery of platen 1. The body of the spring detent 4-] is also kept below the periphery of the platen. 'lhe jaw of the detent, also pawl 14 and its spring 38 and spring engaging pin 39 may extend or operate to points outside of the periphery of the platen, providing they are at all times within the space between where the paper leads on to the platen from and where it leads ofi' from the platen to 33. When these elements are thusplaced the margin of the paper may extend under and over them without obstruction until it 'COIUQS in contact; with the inner face of wall 5 and lever 1'2, as indicated at Q5, l.*ig'. 8.

In the embodiment of my ii'ivention illustrated in 1.0 and 11 the outer end 45 of platen is supported by an arm 4-.8 rigidly attached to end frame 5. The outer end of this arm carries rigid bracket 4;? which is provided with a bearing boss d6 in which outer platen pivot 3 journaled. The other end of the platen is journaled on a hub extending inside the end of the platen from the end wall 5 of the carriage. The construetion is similar to that shown in Fig. 1 except that outer pivot 3, instead of being supported from end frame 9 by standard 18, is supported from frame 5 by means of an arm extending the whole length of the platen. Fig. 10 differs from Fig. 3 in that, though in both cases the outer end of the platen has a supporting means extending from end wall 5 ot the carriage, in Fig. 10 this supporting means i8 is carried entirely outside of the platen while in Fig. 3 it is wholly inside the platen. In the Fig. 10 embodiment, as is the case with the Fig. 3 embodiment when the end standard 29 is dropped to the 29 position, the end of the carriage is entirely open so that there is nothing to interfere with the paper extendinn; as far outside of the end oithe carriage as desired, as is illustrated in Fig. 10 in which the sheet of paper passes from under and around the platen, emerging from the top to 83. Margin of the paper, it

will be noted, extends entirely outsideof the end of the carriage and pivot arm 48 is entirely clear of the path of? the paper, and in no manner interferes with the passing "to, around and from the platen or beyond the end of platen and carriage.

its in the ease of F142; 3 I prefer, 1n the 'lTigs. 10 and H embodiment, to employ a disengaging end support d9 pivoted at .50, 50' and provided with holes 51 to engage pins 51 'in bearing bracket 47. Fig. 11 shows the end support in engagement at 49 and out of engagement at 49. A latch 52, Fig. 10, provided with a jaw 53, engages the edge of support 49 when. the latter is thrown into engagement with end bracket i'l to maintain the latter in engagement.

'lfiigs. 12 and 13 illustrate another application of my invention, the removableend standard 57 in this embodiment being hinged to platen pivot bearing and foldable to a position entirely within an exten sion of the peripheral surface of the platen, instead of being hinged to the end of can riage and foldable to a position outside of an extension of said peripheral surf-cc. Bearing piece 55 is mounted on platen pivot 3 and to this hearing: piece is hinged, on, pin 31, the bearm standard 57. The dotted.

lines 57' show this standard in. ilaten so iporting engagement, in. which position holes i 56 in standard 57 engage pins 56 in end frame 5-1 of carriage.

Obviously, various modifications in the const-l'uctioi'i herein sl'iown and (loser-died,

could be embodied] within the scope of my inventioiu so that I do not i i to be lunitcd to the specific construction shown and v described.

l claim; i y

1. in a typewriter, the combination with a platen journaled at one end and supported. from said journaled end, of a movably mounted journaling; support movable into i and out of journaling support with the other end of said platen, said yournaling support when'out of'journal supporting po,

sition being so arranged asv to lie entirely clear of a longitudinal extension of the .pe

riphery of said platen;

r 2. In a typewriter,tl1e combination with. a reciprocable carnage, of an elongated i sleeve rigidly connected at one end to said carriage, a platen journaled on said sleeve, and a pivot movable into and out of journalinp; engagement with the other end of said platen, said pivot when out of journahng engagement being adapted to lie clear of a longitudinal extension of the ripheral surface of said platen.

3. In a typewriter, the combination with a reeiproeable carriage, of an elongated sleeve rigidly connected at one end to said porting engagement with. the other end of said platen, said journaling support when out of supporting engagement being arranged to lie entirely clear of a longitudinal extension of the periphery oi said. platen.

5. In a typewriter, the combination with a reciprocaliile carriage, of a platen. journaled at one end in said carriage, and a pivot movable into and out oit journalinp;

&

engagement with the other end of said platen, said pivot when out of journaling engagement being adapted to lie entirely clear of a longitudinal extension of the peripheral surface of said platen.

6. In a typewriter, the combination with a reeiprocable carriage, of a platen journaled at one end in said carriage, and a pivot movable into and out of j ournaling engagement with the other end of said platen, said pivot being hinged to said carriage and adapted in its position away from said platen, to lie outside of a longitudinal extension of the peripheral surface of said platen.

7. In a typewriter, the combination with an open end reciprocable carriage, of a platen journaled in said carriage, and a disengageable auxiliary pivot support for said platen at the open end of said carriage, said pivot support when out of engagement being in a position clear of a prolongation of the periphery of said platen.

8 In a typewriter, the combination with an open end reciprocable carriage, of a platen supported and controlled independently of supporting means at the open end of the carriage, and an auxiliary supporting means for said platenadapted to be placed in and out of supporting engagement at the open end of said carriage and so arranged that when out of supporting engagement, said supporting means will be entirely clear of the path of a sheet of paper passed about said platen and extending beyond the open end of said carriage and said platen supporting means.

9. In a typewriter, the combination with an open end carriage, of a platen rotatably mounted in said carriage, and a movable bracket adapted to closethe open end of said carriage and pivotally support the end of said platen from said carriage.

10. In a typewriter, the combination with -'vided with an open an open end carriage, of a platen rotatably mounted in said carriage, and a hinged supporting means adapted to bridge said open end of said carriage and pivotally support said platen from said carriage.

11. In a typewriter, the combination with an open end carriage, of a platen rotatably end of said carriage and engage the end of said carriage to pivotally support said platen.

12. In a typewriter, the combination with an open .end carriage, of a platen rotatable in said carriage, and a platen support hinged to the end of said carriage and adapted to be swung across the open space between the ends of said carriage and said platen and axially engage and support said platen.

13. In a typewriter, a carriage, a platen means for operatably supporting said platen entirely from one end of said carriage, and an auxiliary supporting means movable into and out of operating engagement with the other end of said platen for providing at will additional platen supporting means at the other end of said carriage.

14. In a typewriter, a carriage, a platen rotatably supported from one end of said carriage, and means movable into and out of position to rotatably support the other end of said platen, said carna e being proend adapted to be closed by said movable platen supporting means when 111 position to rotatably support said platen.

CHARLES IV. BARNABY. 

